How often do you text your friends?

One of my friends lives close to home and we've hung out once, but she's really busy with work so we don't get to meet up as much. We do text her a lot and I do wanna do that more, but the problem is that she sometimes responds super late, and I feel like when ppl respond like that it's hard to have a productive conversation so I just prefer meeting in person. But I think texting is cool and I feel like close/best friends tend to text a lot. How often do you or should you text your friends?